"It wasn't romantic, just fun," Reichert told the U.K. publication The People, which appeared on the Mirror website.

The Palace declined to comment, a position it has maintained for all reports of claims emanating from the party in Las Vegas.

According to the write-up, Reichert, a San Diego, Calif., beautician, was selected along with nine other young women to join the party before the third in line to the throne, 27, picked her to be alone with him.

"We kissed, he was naked at the time, and pretty open," she is reported as saying. The story also says she first saw the prince earlier in the evening at the pool of their hotel, the Encore at Wynn.

"I was born in England and I'm pretty familiar with the royal family, but I didn't know the guys he was with," she is quoted as saying. "I was the only one who knew who he was. Everybody else was like, 'Who's that?' And I'm like, 'Oh my God, that's Prince Harry.' "

She says that later a member of the prince's entourage approached her to see if she'd like to join the penthouse party. "I'm not going to pass an opportunity to party with Prince Harry," she recalls as her response to what she termed a "random" invitation.

With the alcohol flowing and the party in full swing, there was no security check, she said.

"Harry was already undressed. It was just crazy. He looked actually delirious. There was a pool table and he was playing air guitar with pool sticks," she said. "He was screaming out, 'Somebody get me a glove! I'm going to do a Michael Jackson impression!' "

She described him as giving "random naked hugs" and being "really friendly."